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Seatposts

Inventory varies across our stores. Please call to ensure the product you are looking for is in stock at the location you plan to visit before stopping by. You can always buy online for in-store pickup.

Belmont Wheelworks - 617.489.3577 | ACE Wheelworks - 617.776.2100

$54.00 $60.00 10% Off
On today's road bikes, silver stands out amid the sea of stealthy black color schemes. This time-honored seatpost color is available on the Zipp Service Course Seatpost. Since the introduction of our line of Service Course and Service Course SL components, we've had amazing success with our pro-level athletes in all disciplines. While the successes have reinforced our design decisions, we have also drawn from their feedback. We not only learned how and why athletes make their equipment choices, but how our manufacturing methods and materials affect product performance. With new knowledge as well as new engineering, we are proud to offer redesigned Service Course seatposts. - Material: 6061 aluminum - 2-bolt adjustability - Minimum insertion length: 90mm
$154.80 $172.00 10% Off
The carbon Service Course SL seatpost is specifically tuned to be more shock absorbing than the "comfort" seatposts on the market, while still passing our strict internal MTB strength test. Flex engineered into the lightweight carbon tube keeps the rider comfortable over any terrain. Better fit means better performance, and if your saddle is out of position, you'll waste energy with every pedal stroke. The secure, two-bolt clamp makes for easy micro-adjustments of saddle position, and the head has been redesigned for maximum bolt-head accessibility. The Service Course SL seatpost makes it possible for nearly any rider to achieve the perfect fit, and the clamp works with all saddle rail types. - Distinctive Zipp cosmetics - Unidirectional Carbon fiber tuned for ride comfort - Lightweight clamping system - Lifetime warranty
$252.00 $280.00 10% Off
Keep the weight down with Zipp's SL Speed Seatpost. Crafted of super-light carbon, it’s exceptionally stiff for excellent pedaling efficiency, high strength, low weight, and great seat-gripping power. The micro-adjustable clamp and easy-to-access titanium bolts make seat adjustments a breeze. It was fast enough for Tom Boonen’s double win at Flanders and Paris-Roubaix—just imagine what it will do for you.
$342.00 $380.00 10% Off
The Wolf Tooth Resolve Dropper Post is the first dropper post to use a self-bleeding cartridge. It has the shortest stack height of any dropper post on the market, has a short insertion depth, is one of the lightest dropper posts, and is completely serviceable at home. - Self-Bleeding Resolve Cartridge: At the heart of Resolve Dropper Post is a self-bleeding cartridge that removes air from the fluid chamber with every actuation. All dropper posts can get air in the chamber, which leads to sag and squish. Resolve Dropper Post is the only dropper post that purges air from the chamber, which means you'll never need to buy a new cartridge as you do with all other dropper posts. - Shortest Stack Height: The shortest stack height of any dropper post means that Resolve can get your saddle lower than any other dropper post. The lower your saddle, the more room you have to maneuver your bike on drops and techy descents. - Weight and weight per travel is equal to the best: Resolve Dropper Post is one of the most lightweight dropper posts on the market when it comes to grams per millimeter of travel. It's as much as 26% lighter than other dropper posts of the same travel size. - Short Insertion Length: When a dropper post has a short insertion length, longer travel options are unlocked for more bikes. A short insertion length is vital for smaller bikes, frames with curved seat tubes, and frames with seat tubes that have bottle bosses. - Travel Reduction with Spacers: The travel length of your Resolve dropper post can be customized in order to suit your bike and saddle height. Spacer kits are sold separately or those who would like to have the adjustment made later by their local shop mechanic. If you are comfortable with working on suspension components, you may be able to complete the installation yourself.
$63.00 $70.00 10% Off
The Whisky No.7 Seatposts are made from the highest quality materials to be durable, lightweight, and comfortable. Whether you’re remounting during the cross race, or abusing them on the trail, you can trust Whisky’s seatposts. Available in different diameters and offsets. - Convenient finger adjustment of saddle angle - Unidirectional carbon shaft, forged aluminum head - No rider weight limit - 5 year Whisky warranty - ASTM Condition 3 - For rough off-road riding and jumps less than 24"
$94.50 $105.00 10% Off
Seatposts can be an overlooked part of the bike, but at Whisky Parts Co., everything gets the same attention to detail so your ride never suffers. Their seatposts are made from the highest quality carbon, ensuring they are durable, lightweight, and comfortable. Whether you’re remounting during a cross race or abusing them on the trail, you'll be glad you have the No.7. - Carbon shaft absorbs trail chatter - UD carbon shaft, forged aluminum head
$55.80 $62.00 10% Off
The Velo Orange Grand Cru seatpost is made from one piece of aluminum, internally ovalized to trim weight. The Grand Cru seatpost’s head is integral with the post – not pressed on – for great strength and weight savings. 0mm Setback: Zero-setback/offset posts are commonly used on mountain bikes and by some bikepackers. The Grand Cru zero setback post uses a one-bolt, ergonomic side-adjustment mechanism for both saddle rail clamping and fore-aft adjustment. 30.2mm Setback: For riders who prefer the comfort of leather saddles but have found proper saddle placement difficult due the short rails on leather saddles Velo Orange offers the Grand Cru Long Setback with an ample 30.2mm of setback. This model uses a two-bolt design.
$103.49 - $109.76 $114.99 - $121.95 10% Off
Thomson's Elite Seatpost is perhaps one of the most recognizable bicycle components in the world and it has earned its reputation as a super-strong, light and reliable beauty. With roots in the aerospace industry, Thomson builds the post with a tough and light 7000-series aluminum body, an elliptical extrusion that adds strength and stiffness, and a head and seat clamp forged and machined from a block of aluminum to eliminate any possible weak areas. Plus, its simple-to-use 2-bolt seat clamp allows speedy, infinite and secure seat angle adjustment from minus 5 degrees to plus 29 degrees. Upgrade your favorite ride to a Thomson seatpost and start riding in style.
$103.49 $114.99 10% Off
Thomson's Elite Setback Seatpost is perhaps one of the most recognizable bicycle components in the world and it has earned its reputation as a super-strong, light and reliable beauty. With roots in the aerospace industry, Thomson builds the post with a tough and light 7000-series aluminum body, an elliptical extrusion that adds strength and stiffness, and a head and seat clamp forged and machined from a block of aluminum to eliminate any possible weak areas. Plus, its simple-to-use 2-bolt seat clamp allows speedy, infinite and secure seat angle adjustment from minus 5 degrees to plus 29 degrees. Upgrade your favorite ride to a Thomson seatpost and start riding in style.
$14.99
- Forged aluminum - 7/8-inch seat-clamp diameter - 165 grams
$15.00
• Steel • Polished-chrome finish • 7/8-inch seat-clamp diameter
$22.49 - $27.00 $24.99 - $30.00 10% Off
• Forged aluminum • Integrated micro-adjust seat clamp
$224.99 $249.99 10% Off
This replacement seatpost for the Tarmac SL7 ensures the perfect fit with two different setback options: 0mm and 20mm. - FACT carbon construction and aerodynamic profile compatible with the 2021 Tarmac SL7. - Setback: 0/20mm. - Sleek Di2 integration hides the Di2 junction box inside. - Cylindrical aluminum head assembly adjusts fore-aft and tilt with an easy-access single bolt.
$315.00 $350.00 10% Off
Specialized's Command Post IRCC, offers Cruiser Control technology. With ten micro-adjust positions, you'll always be able to find just the right saddle height for descending like Gwin or climbing like Sauser. - Patented mechanical locking system with the addition of Cruiser Control Technology. - Cruiser Control technology features added positions in the cruiser control range. - Bonded lightweight aluminum micro-adjustable “alien” style head. - Dual-keyway system eliminates saddle wiggle. - Energized triple-lip wiper prevents contamination. - Durable zero-gap, dual-lip x-ring internal seal ensures long-term durability. - Ships with SRL and grip mounted lever.
$242.99 $269.99 10% Off
- Internal Routed, Infinitely Adjustable Design - Simplistic - Fully Sealed Alloy Cage / Stainless Tip Cartridge System - Durable 3D Forged Head - With 7075-T6 Forged Clamp - Featherlight Thumb Actuation - Industry Leading - Intelligent Keyway System - Ensures Minimal Play - Easiest Installation - Cable Head Attaches At Base - Cold Weather Approved - Tested Down To -20C. - 1x Lever included - With Premium Jagwire Lex Slick Housing, Stainless Cable and Hardware - Remote Position: On handlebar - Cable Routing: Internal - Offset: 0mm - Clamp Type: Standard, double bolt - Seat Post Material: Aluminum - Seat Post Weight: 510g
$269.10 $299.00 10% Off
New Guts, New Glory Don’t let its familiar good looks fool you—Reverb is a whole new weapon. Its internals have been completely re-engineered to improve on its already legendary performance and to offer enhanced reliability: all the smallest details, down to the single seal, have been re-evaluated and updated to pass the hardest and longest durability tests. This is the brand-new Reverb, engineered for the next-generation mountain biker. - Completely redesigned internals with new SKF internal floating piston - Improved performance and durability in all conditions - Increased bushing overlap - New dedicated post length per travel length - WEIGHT: 520g (Weight based on 340mm post length, 30.9mm diameter, 100mm travel, MMX remote with shifter hardware and 1300 hose) - LENGTH: 340mm, 390mm - COLORS: Black - MATERIAL: Shaft: 3D forged 7050 alloy , Head: 7050 forged alloy - OTHER: Zero offset , remote: adjustable return speed at the handlebar, discrete or Match Maker X, left or right
$359.10 $399.00 10% Off
The Reverb Stealth features Vent Valve Technology for super simple service if the need arises. Redesigned internals provide effortless actuation and increased reliability. With reduced overall post lengths and new travel options, riders of all shapes and sizes benefit from more travel than ever before. The new Reverb Stealth redefines what it means to simply go up and down. - Shorter overall post length - Stealth Internal cable routing
$359.99 $399.99 10% Off
New Guts, New Glory Don't let its familiar good looks fool you—Reverb is a whole new weapon. Its internals have been completely re-engineered to improve on its already legendary performance and to offer enhanced reliability: all the smallest details, down to the single seal, have been re-evaluated and updated to pass the hardest and longest durability tests. Additional bushing overlap also improves performance over time, while new 150- and 170-millimeter travel options are available to tame even the gnarliest of descents. This is the brand-new Reverb, engineered for the next-generation mountain biker. - Internal cable routing keeps your bike sleek and uncluttered - Completely redesigned internals with new SKF internal floating piston - Improved performance and durability in all conditions - 150mm and 170mm travel options available in all diameters - Increased bushing overlap - New dedicated post length per travel length - WEIGHT: 560g (weight based on 340mm post, 30.9mm diameter, 100mm travel, MMX remote with shifter hardware and 1300mm hose) - LENGTH: 340mm, 390mm, 440mm, 480mm - COLORS: Black - MATERIAL: Shaft: 3D forged 7050 alloy , Head: 7050 forged alloy - OTHER: Zero Offset , Remote: Adjustable return speed at the handlebar, Discrete or Match Maker X, Left or right
$53.99 $59.99 10% Off
The proven 2-bolt design on this classic provides a class-leading balance between strength, weight, and adjustability. The two-bolt design is easy to adjust and holds tight. Its low profile clamp reduces stress on lightweight rails and won't bottom out, and the bolts are oriented to the axis of the rails for the greatest contact area with the saddle. The Classic also features Ritchey's 'Classic' high-polish silver finish. - Material: 2014 alloy - Total length: 350mm (including 100mm of minimum insert) - Saddle clamp: standard - Saddle clamp torque: 13Nm (max) - Seat collar torque: not specified - follow frame/seat binder specification - Weight: 260g (27.2x350mm) - Color: high-polish silver
$80.99 $89.99 10% Off
Sleek design and ultimate functionality of the WCS 1-Bolt seatpost are the hallmarks of Ritchey design. Single bolt-actuated side load clamp offers easy adjustability and simple security in a post that works as nicely as it looks. - 3D Forged 7050 Alloy - Available in 27.2, 30.9 and 31.6mm diameters - Available in 350 and 400mm lengths - 20mm Offset - 7x7mm saddle rail clamp included - Interchangeable clamps available for carbon rail saddles - Saddle Clamp Torque Spec: 12Nm - Finish: Blatte - 195g (27.2/350)
$224.96 - $233.96 $249.95 - $259.95 10% Off
The smooth and sleek design of the patented SideBinder clamp makes the Ritchey WCS Carbon 1-Bolt a sophisticated choice to finish off a performance-oriented build. The beauty of this carbon masterpiece lies in the simplicity of the design of the wide clamp head. Secured with a single 5mm bolt, this post offers ease of adjustability while relieving stress on saddle rails. - Monocoque carbon construction - Available in 27.2 & 31.6mm diameters - Available in 350 and 400mm lengths - 7x7mm saddle rail clamp included - Interchangeable clamps available for all different carbon rail sizes - Saddle clamp torque spec: 12Nm - Matte UD carbon finish - 185g (27.2/350)
$341.10 $379.00 10% Off
The internally routed post uses a mechanical lock to keep the post in place and a low-pressure air spring to return to post to maximum extension. Due to the lack of oil and static seals; the post operates in below-freezing temperatures making it a good choice for fat bikes and cold weather riding. - Hunter Head two-bolt design fits standard and 7 x 9 mm Carbon Rails - Actuation cable easily (and tool-free) disconnected with Quick Connector for easy post removal. Uses standard shifter cable and housing - Extreme changes in temperature may require a user to follow the tool-free brake reset procedure for optimum function - Adjusting the air pressure will change the return speed of the post. 20-40 psi range - Remote sold separately
$161.99 $179.99 10% Off
In the bike industry, fashion is determined by the mud on your shorts and dust on your shoes. Yet, there is something undeniably satisfying about a freshly tailored suit, so we designed the all new Rainier Dropper Post to add that custom-tailored feel to your bike. The past version of this post is known for its consistency and reliability. While maintaining those qualities, this new iteration focuses on fitting more bikes and providing refined adjustability for the rider. - Tool-less Travel Adjust - Shortened Overall Length - Sealed air cartridge - Internal cable routing - 3-year warranty!
$30.59 - $31.50 $33.99 - $35.00 10% Off
Origin-8's Pro Fit Alloy Seat Post is made of light and durable forged aluminum that's been anodized and laser etched for a custom look. It also features an adjustable 2-bolt clamp that holds fast and lets you easily dial in your seat position. And, this fine post comes in a variety of diameters to fit almost any bike.
$209.25 - $241.19 $232.50 - $267.99 10% Off
The OneUp Dropper post is available in 120mm, 150mm, 180mm and 210mm lengths and all can be shimmed down in travel by 10 or 20mm. We've been obsessed with shaving every last millimeter from the latest OneUp post to give you the the shortest stack height and shortest total length of any dropper post. No other post can get your saddle lower. Starting from $199 USD with free shipping worldwide, cable actuated with reliable sealed cartridge internals for easy home servicing and includes travel adjust shims allow you to custom tune your post to dial in your perfect length. The dropper market is dominated by expensive big brand posts and generic catalog shopped posts with different logos. We want to offer something better, a post with class leading specs, innovative useful features AND real value. Want more from your dropper? Get OneUp. FEATURES - Travel adjust shims allow you to custom tune your post to dial in your perfect length. - Cable actuated for easy installation and a simple no bleed remote - Ergonomic remote paddle position - Reliable sealed cartridge internals - User replaceable cartridge only $60 USD - Easy to service at home - 2 year warranty UPDATES - Shortest total length of any dropper - Shortest stack height of any dropper - New upper DU Bushing in the upper collar - Increased bushing overlap and durability - 100-210mm post lengths in 10mm increments. - 20g lighter SPECS - Drop 120mm, 150mm, 180mm, 210mm adjustable*. - Diameter 30.9, 31.6, 34.9 - Routing Internal only Remote Compatibility: - SRAM Matchmaker X - SRAM MMX clamps - Shimano I-spec-EV - 12 speed XTR M9100, XT M8100 and SLX M7100 - Shimano I-spec II - 11 speed XTR M9000, XT M8000, SLX M8000 only - 22.2mm Bar Clamp - All other groups 10 speed SHIMANO - Cable clamping remote only (post requires cable stop to be assembled at base of post) - Travel Reducing Shim Reduces travel by up to 20mm. Weight Post Only - (30.9) 120mm 435g / 150mm 480g / 180mm 525g / 210mm 570g - (31.6) 120mm 450g / 150mm 500g / 180mm 545g / 210mm 590g - (34.9) 120mm 545g / 150mm 605g / 180mm 660g / 210mm 710g Remote Only - Remote with 22.2mm Bar Clamp - 46g - Remote with SRAM Matchmaker X / I-spec-EV - 43g - Remote with Shimano I-spec-EV - 43g - Remote with Shimano I-spec II - 41g - Housing and Cable (1300mm installed length) - 50g
$251.99 $279.99 10% Off
The KINEKT aluminum 2.1 Seatpost is now sleeker than ever. With more pre-load capability, KINEKT effectively isolates your body from surface vibrations and impacts. This isolation improves comfort, control, and confidence, which ultimately leads to a more enjoyable ride. All posts come with two extra springs so you can mix and match, creating a custom experience. Please note, our spring color has changed a bit. All springs are now grey with a colored stripe corresponding the specific size. Features Include: Interchangeable springs Adjustable pre-load bolt Available in 27.2mm, 30.9mm, 31.6mm diameter* Available in Short (350mm) or Long (420mm) All 2.1 models come with two extra springs so you can have the ability to customize your ride even more!
$26.99 $29.99 10% Off
Kalloy's 602 seatpost comes in a wide variety of diameters to fit most frames. Simple, sturdy, and lightweight, the 602 makes a great replacement seatpost.
$25.19 $27.99 10% Off
FEATURES - 5° seat angle ideal for 20" wheel bikes - Medium padding thickness ideal for all styles of riding - 3 Panel PHU leather design - Embossed Baseline logo - 200mm long aluminum post
$269.10 $299.00 10% Off
The proven Transfer seatpost gets lighter and tighter. Completely redesigned from the ground up, with improved serviceability, decreased weight, reduced length, and decreased insertion depth. Performance Elite Transfer Posts retain the same internals, diameter options, drop options, shortened stack heights, new patent-pending head design and proven internals as the Factory Series but have a black anodized upper. - Cable actuated with tool-free quick disconnect for easier installation and removal - Low lever force provides consistent actuation pressure even with saddle weighted or unweighted - Easy to modulate return speed with lever - Remote lever sold separately - 0mm offset
$309.60 $344.00 10% Off
The Transfer seatpost features an infinitely adjustable design with the choice of internal or external cable routing, three drop options, and two lever designs. Low lever force and great modulation make it easy to regulate return speed and small height adjustments. - Cable actuated with tool-free quick disconnect for easier installation and removal - Low lever force provides consistent actuation pressure even with saddle weighted or unweighted - Easy to modulate return speed with lever - Two remote options: left side below bar (for 1x) or left/right on bar (for 2x/3x) - 30.9 or 31.6 diameter - Drop options: 4in (100 mm), 5in (125 mm), 6in (150 mm) - Genuine Kashima Coat
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